Civilization 2 - Test of Time kodai:

Tip 1:

Airborne races have a huge initial advantage in
exploration and expansion because their settlers
can fly over water. Their inability to exploit
barbarian villages is a small price to pay.

Tip 2:

In the fantasy scenarios, it pays to seize control
of the entrances to the underworld. There are
relatively few of them, and they are easy to fortify
if you move quickly; the rich underworld resources
can be all yours.

Tip 3:

In the extended basic game, remember to be prepared
for a long war once the colony ships are launched.